I have recently upgraded to wordpress 3.6.1 and when i visited my site the theme had gone. I did a quick google search and it was suggested that I deactivate and then reactivate my plugins one at a time and my theme returned. I did most of the plugins until I reactivated W3 Total Cache and my theme went down again.
With my limited experience I think this plugin was the issue. Need to find a different way to use a CDN with my site as this plugin has issues with WP 3.6.1.
